7445cff5e8
Build a hit-test display list while recording paint output. Use it as source of truth for point hit testing instead of recursively walking the paintable tree in reverse paint order. The retained list records target paintables, visual context indices, border radii, caret rects, and line metadata needed by hit testing. It also keeps a spatial index so point queries inspect nearby items before checking containment in paint order. Refresh scroll state before hit testing so visual context transforms use current scroll offsets. Add text tests for rounded hit regions and selection across non-text content.
41 lines
1.3 KiB
C++
41 lines
1.3 KiB
C++
/*
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* Copyright (c) 2026, the Ladybird developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibWeb/Painting/ChromeWidget.h>
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#include <LibWeb/Painting/PaintableBox.h>
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namespace Web::Painting {
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class Scrollbar final : public ChromeWidget {
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public:
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static NonnullRefPtr<Scrollbar> create(PaintableBox&, PaintableBox::ScrollDirection);
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PaintableBox::ScrollDirection direction() const { return m_direction; }
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bool is_enlarged() const { return m_hovered || m_thumb_grab_position.has_value(); }
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virtual bool contains(CSSPixelPoint position, ChromeMetrics const&) const override;
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virtual MouseAction handle_pointer_event(FlyString const& type, unsigned button, CSSPixelPoint visual_viewport_position) override;
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virtual void mouse_enter() override;
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virtual void mouse_leave() override;
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private:
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Scrollbar(PaintableBox&, PaintableBox::ScrollDirection);
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MouseAction mouse_down(CSSPixelPoint, unsigned button);
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MouseAction mouse_move(CSSPixelPoint);
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MouseAction mouse_up(CSSPixelPoint, unsigned button);
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bool scroll_to_mouse_position(CSSPixelPoint);
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WeakPtr<PaintableBox> m_paintable_box;
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PaintableBox::ScrollDirection m_direction;
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bool m_hovered { false };
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Optional<CSSPixels> m_thumb_grab_position;
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};
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}
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